git it got it good

to turn any directory into a git repo run the following command within the directory

git init

to remove git from a directory / project, just delete the .git directory in the root of the project. to add a remote repo for a git project

git remote add origin <URL>

to display the remote URL’s of a git project

git remote -v

to copy a remote git repo to a local box run the below command

git clone <URL>

to stage all the changes displayed from git status run the below command

git add .

or

git add -A

to commit all the changes for a push to the remote repo run the below command

git commit -m “Commit local changes”

to push all the committed changes to a remote repo run the below commandto push all the committed changes to a remote repo run the below command

git push

Sync local / remote repos with git pull

git pull is a shortcut of two other git commands

git fetch
git merge
git fetch; git merge

Isolate feature development with git branch

to create a new branch that isolates a feature / fix run the below command

git branch new-feature

to display all the branches of a git repo run the below command

git branch

to switch to the new-feature branch run the below command

git checkout new-feature

to create a new branch and switch to it run the below command

git checkout -b new-feature2

to switch to the last checked out branch run the below command

git checkout -

will switch back to the master branch

Sync branches with git merge

to combine the new-feature branch with master run the below commands

git checkout master
git merge new-feature

to delete a branch after everything is complete with it, run the below command

git branch -d new-feature

Resolve merge conflict with git status

A merge conflict arises when the local and remote code both change, and it can’t be resolved with a standard git pull or git push There are three possible scenarios to resolve a merge conflict use git status to see the file in question that is causing the merge conflict

Save uncommitted changes with git stash

git stash allows you to save your local changes after staging them

git add .
git stash

Navigate git command pager output with unix less commands

git log will show a history of all the commits to a remote repo

View commit history with git log

git log can take arguments like the below command

git log {arguments}

Format commit history with git log arguments

some sample git log arguments are listed below

git log --oneline
git log --decorate
git log --graph
git log -p
git log --stat

a useful example of combining arguments is listed below

git log --oneline --graph

Filter commit history with git log arguments

to see the three most recent commits run the below command

git log -3

below are various git log commands with arguments

git log --after=”yesterday”
git log --author=”ipatch”
git log --no-merges

Compare file changes with git diff

git diff --stat
git diff --cached

Show who changed a last line with git blame

to see who modified a file last run the below command

git blame someFile.rb

Use semantic versioning with git tag

to see a list of tags in a repo run the below command

git tag

to create a tag for a repo, run the given example below

git tag v1.0.0

to push the local tags to a remote repo, run the following

git push --tags

Clean up commits with git rebase

to grab the latest version of the remote code, use following

git fetch

to rebase a branch interactively run the below command

git rebase -i origin/master

Diagnose which commit broke something with git bisect

git bisect allows you to track down a problem in code on a commit to commit basis. to start a bisecting state run the below command

git bisect start

to label a commit good / bad run the following command

git bisect bad
git bisect good

Run scripts on git events with git hooks

a test suite such as Rspec can run all its test before a git commit is made

Example - create the following file in .git/hooks/pre-commit

Configure global settings with git config

the below command will write to the global .gitconfig in the user’s home dir

git config --global

to set the editor for git run the below command

git config --global core.editor vim

aliases can be created using something similar to the below command

git config --global alias.graph ‘log --graph --oneline’

Remove unnecessary tracking git tracking with .gitignore files to remove a tracked file from a git repo

git rm --cached

to remove ALL .DS_Store files from a git repo add the below line to .gitignore

**/.DS_Store

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These notes wouldn't be possible if the below course wasn't created.
git for everyday professional use cheers 🍻
Chris